X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller.h;h=7b1e2ba18c020945145cabbb6b324a04d1b85bef;hp=0234e7c47362b432f8e62d62a53db148899667de;hb=5af1500ee4cbc72412934b8b7c7dc4ec0c206405;hpb=9aa36e970b71cdfa780945e484e216aac1443493 diff --git a/dali-toolkit/internal/text/text-controller.h b/dali-toolkit/internal/text/text-controller.h index 0234e7c..7b1e2ba 100644 --- a/dali-toolkit/internal/text/text-controller.h +++ b/dali-toolkit/internal/text/text-controller.h @@ -2,7 +2,7 @@ #define __DALI_TOOLKIT_TEXT_CONTROLLER_H__ /* - * Copyright (c) 2015 Samsung Electronics Co., Ltd. + * Copyright (c) 2016 Samsung Electronics Co., Ltd. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -19,20 +19,14 @@ */ // EXTERNAL INCLUDES -#include -#include -#include +#include #include -#include -#include -#include -#include // INTERNAL INCLUDES +#include #include -#include +#include #include -#include namespace Dali { @@ -44,23 +38,34 @@ namespace Text { class Controller; -class LayoutEngine; +class View; typedef IntrusivePtr ControllerPtr; typedef Dali::Toolkit::Text::ControlInterface ControlInterface; /** + * @brief Different placeholder-text can be shown when the control is active/inactive. + */ +enum PlaceholderType +{ + PLACEHOLDER_TYPE_ACTIVE, + PLACEHOLDER_TYPE_INACTIVE, +}; + +/** * @brief A Text Controller is used by UI Controls which display text. * * It manipulates the Logical & Visual text models on behalf of the UI Controls. * It provides a view of the text that can be used by rendering back-ends. * * For selectable/editable UI controls, the controller handles input events from the UI control - * and decorations (grab handles etc) via an observer interface. + * and decorations (grab handles etc) via the Decorator::ControllerInterface interface. + * + * The text selection popup button callbacks are as well handled via the TextSelectionPopupCallbackInterface interface. */ -class Controller : public RefObject, public Decorator::Observer +class Controller : public RefObject, public Decorator::ControllerInterface, public TextSelectionPopupCallbackInterface { -private: +public: /** * @brief Text related operations to be done in the relayout process. @@ -77,13 +82,38 @@ private: SHAPE_TEXT = 0x0040, GET_GLYPH_METRICS = 0x0080, LAYOUT = 0x0100, - UPDATE_ACTUAL_SIZE = 0x0200, + UPDATE_LAYOUT_SIZE = 0x0200, REORDER = 0x0400, ALIGN = 0x0800, + COLOR = 0x1000, + UPDATE_DIRECTION = 0x2000, ALL_OPERATIONS = 0xFFFF }; -public: + /** + * @brief Used to distinguish between regular key events and IMF events + */ + enum InsertType + { + COMMIT, + PRE_EDIT + }; + + /** + * @brief Used to specify whether to update the input style. + */ + enum UpdateInputStyleType + { + UPDATE_INPUT_STYLE, + DONT_UPDATE_INPUT_STYLE + }; + + enum UpdateTextType + { + NONE_UPDATED = 0x0, + MODEL_UPDATED = 0x1, + DECORATOR_UPDATED = 0x2 + }; /** * @brief Create a new instance of a Controller. @@ -94,6 +124,112 @@ public: static ControllerPtr New( ControlInterface& controlInterface ); /** + * @brief Called to enable text input. + * + * @note Selectable or editable controls should call this once after Controller::New(). + * @param[in] decorator Used to create cursor, selection handle decorations etc. + */ + void EnableTextInput( DecoratorPtr decorator ); + + /** + * @brief Used to switch between bitmap & vector based glyphs + * + * @param[in] glyphType The type of glyph; note that metrics for bitmap & vector based glyphs are different. + */ + void SetGlyphType( TextAbstraction::GlyphType glyphType ); + + /** + * @brief Enables/disables the mark-up processor. + * + * By default is disabled. + * + * @param[in] enable Whether to enable the mark-up processor. + */ + void SetMarkupProcessorEnabled( bool enable ); + + /** + * @brief Retrieves whether the mark-up processor is enabled. + * + * By default is disabled. + * + * @return @e true if the mark-up processor is enabled, otherwise returns @e false. + */ + bool IsMarkupProcessorEnabled() const; + + /** + * @brief Enables/disables the auto text scrolling + * + * By default is disabled. + * + * @param[in] enable Whether to enable the auto scrolling + */ + void SetAutoScrollEnabled( bool enable ); + + /** + * @brief Retrieves whether auto text scrolling is enabled. + * + * By default is disabled. + * + * @return @e true if auto scrolling is enabled, otherwise returns @e false. + */ + bool IsAutoScrollEnabled() const; + + /** + * @brief Get direction of the text from the first line of text, + * @return bool rtl (right to left) is true + */ + CharacterDirection GetAutoScrollDirection() const; + + /** + * @brief Get the alignment offset of the first line of text. + * + * @return The alignment offset. + */ + float GetAutoScrollLineAlignment() const; + + /** + * @brief Enables the horizontal scrolling. + * + * @param[in] enable Whether to enable the horizontal scrolling. + */ + void SetHorizontalScrollEnabled( bool enable ); + + /** + * @brief Retrieves whether the horizontal scrolling is enabled. + * + * @return @e true if the horizontal scrolling is enabled, otherwise it returns @e false. + */ + bool IsHorizontalScrollEnabled() const; + + /** + * @brief Enables the vertical scrolling. + * + * @param[in] enable Whether to enable the vertical scrolling. + */ + void SetVerticalScrollEnabled( bool enable ); + + /** + * @brief Retrieves whether the verticall scrolling is enabled. + * + * @return @e true if the vertical scrolling is enabled, otherwise it returns @e false. + */ + bool IsVerticalScrollEnabled() const; + + /** + * @brief Enables the smooth handle panning. + * + * @param[in] enable Whether to enable the smooth handle panning. + */ + void SetSmoothHandlePanEnabled( bool enable ); + + /** + * @brief Retrieves whether the smooth handle panning is enabled. + * + * @return @e true if the smooth handle panning is enabled. + */ + bool IsSmoothHandlePanEnabled() const; + + /** * @brief Replaces any text previously set. * * @note This will be converted into UTF-32 when stored in the text model. @@ -104,23 +240,55 @@ public: /** * @brief Retrieve any text previously set. * - * @return A string of UTF-8 characters. + * @param[out] text A string of UTF-8 characters. */ void GetText( std::string& text ) const; /** + * @brief Remove a given number of characters + * + * When predictve text is used the pre-edit text is removed and inserted again with the new characters. + * The UpdateInputStyleType @type parameter if set to DONT_UPDATE_INPUT_STYLE avoids to update the input + * style when pre-edit text is removed. + * + * @param[in] cursorOffset Start position from the current cursor position to start deleting characters. + * @param[in] numberOfCharacters The number of characters to delete from the cursorOffset. + * @param[in] type Whether to update the input style. + * @return True if the remove was successful. + */ + bool RemoveText( int cursorOffset, + int numberOfCharacters, + UpdateInputStyleType type ); + + /** * @brief Replaces any placeholder text previously set. * + * @param[in] type Different placeholder-text can be shown when the control is active/inactive. * @param[in] text A string of UTF-8 characters. */ - void SetPlaceholderText( const std::string& text ); + void SetPlaceholderText( PlaceholderType type, const std::string& text ); /** * @brief Retrieve any placeholder text previously set. * - * @return A string of UTF-8 characters. + * @param[in] type Different placeholder-text can be shown when the control is active/inactive. + * @param[out] A string of UTF-8 characters. + */ + void GetPlaceholderText( PlaceholderType type, std::string& text ) const; + + /** + * @brief Sets the maximum number of characters that can be inserted into the TextModel + * + * @param[in] maxCharacters maximum number of characters to be accepted + */ + void SetMaximumNumberOfCharacters( Length maxCharacters ); + + /** + * @brief Sets the maximum number of characters that can be inserted into the TextModel + * + * @param[in] maxCharacters maximum number of characters to be accepted */ - void GetPlaceholderText( std::string& text ) const; + int GetMaximumNumberOfCharacters(); /** * @brief Set the default font family. @@ -137,23 +305,66 @@ public: const std::string& GetDefaultFontFamily() const; /** - * @brief Set the default font style. + * @brief Sets the default font weight. + * + * @param[in] weight The font weight. + */ + void SetDefaultFontWeight( FontWeight weight ); + + /** + * @brief Whether the font's weight has been defined. + */ + bool IsDefaultFontWeightDefined() const; + + /** + * @brief Retrieves the default font weight. + * + * @return The default font weight. + */ + FontWeight GetDefaultFontWeight() const; + + /** + * @brief Sets the default font width. + * + * @param[in] width The font width. + */ + void SetDefaultFontWidth( FontWidth width ); + + /** + * @brief Whether the font's width has been defined. + */ + bool IsDefaultFontWidthDefined() const; + + /** + * @brief Retrieves the default font width. * - * @param[in] defaultFontStyle The default font style. + * @return The default font width. */ - void SetDefaultFontStyle( const std::string& defaultFontStyle ); + FontWidth GetDefaultFontWidth() const; /** - * @brief Retrieve the default font style. + * @brief Sets the default font slant. * - * @return The default font style. + * @param[in] slant The font slant. + */ + void SetDefaultFontSlant( FontSlant slant ); + + /** + * @brief Whether the font's slant has been defined. */ - const std::string& GetDefaultFontStyle() const; + bool IsDefaultFontSlantDefined() const; + + /** + * @brief Retrieves the default font slant. + * + * @return The default font slant. + */ + FontSlant GetDefaultFontSlant() const; /** * @brief Set the default point size. * - * @param[in] defaultFontStyle The default point size. + * @param[in] pointSize The default point size. */ void SetDefaultPointSize( float pointSize ); @@ -165,12 +376,10 @@ public: float GetDefaultPointSize() const; /** - * @brief Retrieve the default fonts. - * - * @param[out] fonts The default font family, style and point sizes. - * @param[in] numberOfCharacters The number of characters in the logical model. + * @ brief Update the text after a font change + * @param[in] newDefaultFont The new font to change to */ - void GetDefaultFonts( Dali::Vector& fonts, Length numberOfCharacters ) const; + void UpdateAfterFontChange( const std::string& newDefaultFont ); /** * @brief Set the text color @@ -187,6 +396,20 @@ public: const Vector4& GetTextColor() const; /** + * @brief Set the text color + * + * @param textColor The text color + */ + void SetPlaceholderTextColor( const Vector4& textColor ); + + /** + * @brief Retrieve the text color + * + * @return The text color + */ + const Vector4& GetPlaceholderTextColor() const; + + /** * @brief Set the shadow offset. * * @param[in] shadowOffset The shadow offset, 0,0 indicates no shadow. @@ -215,6 +438,22 @@ public: const Vector4& GetShadowColor() const; /** + * @brief Sets the shadow's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] shadowProperties The shadow's properties string. + */ + void SetDefaultShadowProperties( const std::string& shadowProperties ); + + /** + * @brief Retrieves the shadow's properties string. + * + * @return The shadow's properties string. + */ + const std::string& GetDefaultShadowProperties() const; + + /** * @brief Set the underline color. * * @param[in] color color of underline. @@ -243,12 +482,257 @@ public: bool IsUnderlineEnabled() const; /** - * @brief Called to enable text input. + * @brief Set the override used for underline height, 0 indicates height will be supplied by font metrics * - * @note Only selectable or editable controls should calls this. - * @param[in] decorator Used to create cursor, selection handle decorations etc. + * @param[in] height The height in pixels of the underline */ - void EnableTextInput( DecoratorPtr decorator ); + void SetUnderlineHeight( float height ); + + /** + * @brief Retrieves the override height of an underline, 0 indicates height is supplied by font metrics + * + * @return The height of the underline, or 0 if height is not overrided. + */ + float GetUnderlineHeight() const; + + /** + * @brief Sets the underline's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] underlineProperties The underline's properties string. + */ + void SetDefaultUnderlineProperties( const std::string& underlineProperties ); + + /** + * @brief Retrieves the underline's properties string. + * + * @return The underline's properties string. + */ + const std::string& GetDefaultUnderlineProperties() const; + + /** + * @brief Sets the emboss's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] embossProperties The emboss's properties string. + */ + void SetDefaultEmbossProperties( const std::string& embossProperties ); + + /** + * @brief Retrieves the emboss's properties string. + * + * @return The emboss's properties string. + */ + const std::string& GetDefaultEmbossProperties() const; + + /** + * @brief Sets the outline's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] outlineProperties The outline's properties string. + */ + void SetDefaultOutlineProperties( const std::string& outlineProperties ); + + /** + * @brief Retrieves the outline's properties string. + * + * @return The outline's properties string. + */ + const std::string& GetDefaultOutlineProperties() const; + + /** + * @brief Sets the default line spacing. + * + * @param[in] lineSpacing The line spacing. + */ + void SetDefaultLineSpacing( float lineSpacing ); + + /** + * @brief Retrieves the default line spacing. + * + * @return The line spacing. + */ + float GetDefaultLineSpacing() const; + + /** + * @brief Sets the input text's color. + * + * @param[in] color The input text's color. + */ + void SetInputColor( const Vector4& color ); + + /** + * @brief Retrieves the input text's color. + * + * @return The input text's color. + */ + const Vector4& GetInputColor() const; + + /** + * @brief Sets the input text's font family name. + * + * @param[in] fontFamily The text's font family name. + */ + void SetInputFontFamily( const std::string& fontFamily ); + + /** + * @brief Retrieves the input text's font family name. + * + * @return The input text's font family name. + */ + const std::string& GetInputFontFamily() const; + + /** + * @brief Sets the input font's weight. + * + * @param[in] weight The input font's weight. + */ + void SetInputFontWeight( FontWeight weight ); + + /** + * @return Whether the font's weight has been defined. + */ + bool IsInputFontWeightDefined() const; + + /** + * @brief Retrieves the input font's weight. + * + * @return The input font's weight. + */ + FontWeight GetInputFontWeight() const; + + /** + * @brief Sets the input font's width. + * + * @param[in] width The input font's width. + */ + void SetInputFontWidth( FontWidth width ); + + /** + * @return Whether the font's width has been defined. + */ + bool IsInputFontWidthDefined() const; + + /** + * @brief Retrieves the input font's width. + * + * @return The input font's width. + */ + FontWidth GetInputFontWidth() const; + + /** + * @brief Sets the input font's slant. + * + * @param[in] slant The input font's slant. + */ + void SetInputFontSlant( FontSlant slant ); + + /** + * @return Whether the font's slant has been defined. + */ + bool IsInputFontSlantDefined() const; + + /** + * @brief Retrieves the input font's slant. + * + * @return The input font's slant. + */ + FontSlant GetInputFontSlant() const; + + /** + * @brief Sets the input font's point size. + * + * @param[in] size The input font's point size. + */ + void SetInputFontPointSize( float size ); + + /** + * @brief Retrieves the input font's point size. + * + * @return The input font's point size. + */ + float GetInputFontPointSize() const; + + /** + * @brief Sets the input line spacing. + * + * @param[in] lineSpacing The line spacing. + */ + void SetInputLineSpacing( float lineSpacing ); + + /** + * @brief Retrieves the input line spacing. + * + * @return The line spacing. + */ + float GetInputLineSpacing() const; + + /** + * @brief Sets the input shadow's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] shadowProperties The shadow's properties string. + */ + void SetInputShadowProperties( const std::string& shadowProperties ); + + /** + * @brief Retrieves the input shadow's properties string. + * + * @return The shadow's properties string. + */ + const std::string& GetInputShadowProperties() const; + + /** + * @brief Sets the input underline's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] underlineProperties The underline's properties string. + */ + void SetInputUnderlineProperties( const std::string& underlineProperties ); + + /** + * @brief Retrieves the input underline's properties string. + * + * @return The underline's properties string. + */ + const std::string& GetInputUnderlineProperties() const; + + /** + * @brief Sets the input emboss's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] embossProperties The emboss's properties string. + */ + void SetInputEmbossProperties( const std::string& embossProperties ); + + /** + * @brief Retrieves the input emboss's properties string. + * + * @return The emboss's properties string. + */ + const std::string& GetInputEmbossProperties() const; + + /** + * @brief Sets input the outline's properties string. + * + * @note The string is stored to be recovered. + * + * @param[in] outlineProperties The outline's properties string. + */ + void SetInputOutlineProperties( const std::string& outlineProperties ); + + /** + * @brief Retrieves the input outline's properties string. + * + * @return The outline's properties string. + */ + const std::string& GetInputOutlineProperties() const; /** * @brief Called to enable/disable cursor blink. @@ -273,13 +757,6 @@ public: const Vector2& GetScrollPosition() const; /** - * @brief Query the alignment offset. - * - * @return The alignmnet offset. - */ - const Vector2& GetAlignmentOffset() const; - - /** * @copydoc Control::GetNaturalSize() */ Vector3 GetNaturalSize(); @@ -294,9 +771,10 @@ public: * * @note UI Controls are expected to minimize calls to this method e.g. call once after size negotiation. * @param[in] size A the size of a bounding box to layout text within. - * @return True if the text model or decorations were updated. + * + * @return Whether the text model or decorations were updated. */ - bool Relayout( const Size& size ); + UpdateTextType Relayout( const Size& size ); /** * @brief Process queued events which modify the model. @@ -304,30 +782,36 @@ public: void ProcessModifyEvents(); /** - * @brief Used to process an event queued from SetText() - * - * @param[in] newText The new text to store in the logical model. + * @brief Used to remove placeholder text. */ - void ReplaceTextEvent( const std::string& newText ); + void ResetText(); /** - * @brief Used to process an event queued from key events etc. + * @brief Used to reset the cursor position after setting a new text. * - * @param[in] text The text to insert into the logical model. + * @param[in] cursorIndex Where to place the cursor. */ - void InsertTextEvent( const std::string& text ); + void ResetCursorPosition( CharacterIndex cursorIndex ); /** - * @brief Used to process an event queued from backspace key etc. + * @brief Used to reset the scroll position after setting a new text. */ - void DeleteTextEvent(); + void ResetScrollPosition(); /** - * @brief Update the model following text replace/insert etc. - * - * @param[in] operationsRequired The layout operations which need to be done. + * @brief Used to process an event queued from SetText() + */ + void TextReplacedEvent(); + + /** + * @brief Used to process an event queued from key events etc. + */ + void TextInsertedEvent(); + + /** + * @brief Used to process an event queued from backspace key etc. */ - void UpdateModel( OperationsMask operationsRequired ); + void TextDeletedEvent(); /** * @brief Lays-out the text. @@ -343,11 +827,43 @@ public: Size& layoutSize ); /** - * @brief Calulates the alignment of the whole text inside the bounding box. + * @brief Whether to enable the multi-line layout. + * + * @param[in] enable \e true enables the multi-line (by default) + */ + void SetMultiLineEnabled( bool enable ); + + /** + * @return Whether the multi-line layout is enabled. + */ + bool IsMultiLineEnabled() const; + + /** + * @copydoc Dali::Toolkit::Text::LayoutEngine::SetHorizontalAlignment() + */ + void SetHorizontalAlignment( LayoutEngine::HorizontalAlignment alignment ); + + /** + * @copydoc Dali::Toolkit::Text::LayoutEngine::GetHorizontalAlignment() + */ + LayoutEngine::HorizontalAlignment GetHorizontalAlignment() const; + + /** + * @copydoc Dali::Toolkit::Text::LayoutEngine::SetVerticalAlignment() + */ + void SetVerticalAlignment( LayoutEngine::VerticalAlignment alignment ); + + /** + * @copydoc Dali::Toolkit::Text::LayoutEngine::GetVerticalAlignment() + */ + LayoutEngine::VerticalAlignment GetVerticalAlignment() const; + + /** + * @brief Calulates the vertical offset to align the text inside the bounding box. * * @param[in] size The size of the bounding box. */ - void CalculateTextAlignment( const Size& size ); + void CalculateVerticalOffset( const Size& size ); /** * @brief Return the layout engine. @@ -366,24 +882,39 @@ public: // Text-input Event Queuing /** - * @brief Caller by editable UI controls when keyboard focus is gained. + * @brief Called by editable UI controls when keyboard focus is gained. */ void KeyboardFocusGainEvent(); /** - * @brief Caller by editable UI controls when focus is lost. + * @brief Called by editable UI controls when focus is lost. */ void KeyboardFocusLostEvent(); /** - * @brief Caller by editable UI controls when key events are received. + * @brief Called by editable UI controls when key events are received. * * @param[in] event The key event. + * @param[in] type Used to distinguish between regular key events and IMF events. */ bool KeyEvent( const Dali::KeyEvent& event ); /** - * @brief Caller by editable UI controls when a tap gesture occurs. + * @brief Called by editable UI controls when key events are received. + * + * @param[in] text The text to insert. + * @param[in] type Used to distinguish between regular key events and IMF events. + */ + void InsertText( const std::string& text, InsertType type ); + + /** + * @brief Checks if text is selected and if so removes it. + * @return true if text was removed + */ + bool RemoveSelectedText(); + + /** + * @brief Called by editable UI controls when a tap gesture occurs. * @param[in] tapCount The number of taps. * @param[in] x The x position relative to the top-left of the parent control. * @param[in] y The y position relative to the top-left of the parent control. @@ -391,7 +922,7 @@ public: void TapEvent( unsigned int tapCount, float x, float y ); /** - * @brief Caller by editable UI controls when a pan gesture occurs. + * @brief Called by editable UI controls when a pan gesture occurs. * * @param[in] state The state of the gesture. * @param[in] displacement This distance panned since the last pan gesture. @@ -399,9 +930,64 @@ public: void PanEvent( Gesture::State state, const Vector2& displacement ); /** - * @copydoc Dali::Toolkit::Text::Decorator::Observer::GrabHandleEvent() + * @brief Called by editable UI controls when a long press gesture occurs. + * + * @param[in] state The state of the gesture. + * @param[in] x The x position relative to the top-left of the parent control. + * @param[in] y The y position relative to the top-left of the parent control. + */ + void LongPressEvent( Gesture::State state, float x, float y ); + + /** + * @brief Creates a selection event. + * + * It could be called from the TapEvent (double tap) or when the text selection popup's sellect all button is pressed. + * + * @param[in] x The x position relative to the top-left of the parent control. + * @param[in] y The y position relative to the top-left of the parent control. + * @param[in] selectAll Whether the whole text is selected. + */ + void SelectEvent( float x, float y, bool selectAll ); + + /** + * @brief Event received from IMF manager + * + * @param[in] imfManager The IMF manager. + * @param[in] imfEvent The event received. + * @return A data struture indicating if update is needed, cursor position and current text. + */ + ImfManager::ImfCallbackData OnImfEvent( ImfManager& imfManager, const ImfManager::ImfEventData& imfEvent ); + + /** + * @brief Paste given string into Text model + * @param[in] stringToPaste this string will be inserted into the text model + */ + void PasteText( const std::string& stringToPaste ); + + /** + * @brief Event from Clipboard notifying an Item has been selected for pasting */ - virtual void GrabHandleEvent( GrabHandleState state, float x, float y ); + void PasteClipboardItemEvent(); + + /** + * @copydoc Dali::Toolkit::Text::Decorator::ControllerInterface::GetTargetSize() + */ + virtual void GetTargetSize( Vector2& targetSize ); + + /** + * @copydoc Dali::Toolkit::Text::Decorator::ControllerInterface::AddDecoration() + */ + virtual void AddDecoration( Actor& actor, bool needsClipping ); + + /** + * @copydoc Dali::Toolkit::Text::Decorator::ControllerInterface::DecorationEvent() + */ + virtual void DecorationEvent( HandleType handle, HandleState state, float x, float y ); + + /** + * @copydoc Dali::Toolkit::TextSelectionPopup::TextPopupButtonCallbackInterface::TextPopupButtonTouched() + */ + virtual void TextPopupButtonTouched( Dali::Toolkit::TextSelectionPopup::Buttons button ); protected: @@ -413,9 +999,26 @@ protected: private: /** - * @brief Request a relayout using the ControlInterface. + * @brief Helper to KeyEvent() to handle the backspace case. + * + * @return True if a character was deleted. */ - void RequestRelayout(); + bool BackspaceKeyEvent(); + + /** + * @brief Helper to clear font-specific data. + */ + void ShowPlaceholderText(); + + /** + * @brief Helper to clear font-specific data (only). + */ + void ClearFontData(); + + /** + * @brief Helper to clear text's style data. + */ + void ClearStyleData(); /** * @brief Private constructor. @@ -432,12 +1035,6 @@ private: struct Impl; Impl* mImpl; - - // Avoid allocating this when the user does not specify a font - struct FontDefaults; - - // Avoid allocating this for non-editable controls - struct TextInput; }; } // namespace Text